Andrea Krush is currently working as Information Security Officer (ISO) for the Nederlandse Spoorwegen (NS) as lead-ISO for the area of operational technology with a primary focus on rolling stock. With a passion for information technology, she started her career studying the use of technology in learning environments. Her professional experience spans different roles in information technology, with a focus on security. Recently. Andres sets up the security office of a municipal shared-service centre where she then filled the roles of CISO and Data Protection Officer. As NS lead ISO for operational technology (OT), she is currently responsible for developing the OT security roadmap with the different stakeholders responsible for the line activities and creating the OT policy. Andrea has experience working with different security frameworks, most recently with the IEC-62443 in relation to the NIST Cyber Security Framework for the NS OT policy. Andrea Krush has a diverse experience in public speaking, presentation and training. In 2018 I presented to the ISF Orange Chapter on crisis management and to the Tweakers Meet-Up XXL on security and privacy for big data.